Solar
Stability of Perovskite-Silicon Tandem Cells Under Thermal Cycling
- Tomoko Yamamoto,
- Hiroshi Tanaka,
- Maya Okafor
Kyoto University; National Renewable Energy Centre, Lagos
Posted May 9, 2026
This is a non-peer-reviewed preprint. It has not been certified by peer review. Evaluate its claims critically.
Abstract
We report accelerated thermal-cycling results for monolithic perovskite-silicon tandem photovoltaics across 1,200 cycles between -40 and 85 C. We identify halide segregation at the perovskite/transport-layer interface as the dominant degradation pathway and show that a 2D passivation layer recovers 94% of initial efficiency after cycling. We discuss implications for outdoor module lifetimes.
perovskitetandem solar cellsphotovoltaicsstability
Manuscript
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